At which among the following Harappan sites are fire altars found?

Fire altars are a significant archaeological feature found at specific Harappan sites, most notably at Kalibangan in Rajasthan and Lothal in Gujarat [2]. At Kalibangan, these altars were discovered in both the citadel area and the lower town, often containing ash, charcoal, and terracotta cakes, which suggests their use in ritualistic practices or fire worship. While some evidence of fire altars has also been reported at Rakhigarhi, they are famously absent or lack parallels at the major sites of Harappa and Mohenjo-daro [2]. The presence of these structures at Kalibangan is frequently cited by scholars to discuss the religious diversity of the Indus Valley Civilization and potential links to later Vedic fire rituals [3]. Consequently, Kalibangan remains the primary and most definitive answer among the provided options for the discovery of fire altars.

Sources

1. [2] https://en.wikipedia.org/wiki/Kalibangan
2. [3] History , class XI (Tamilnadu state board 2024 ed.) > Chapter 1: Early India: From the Beginnings to the Indus Civilisation > Planned Towns > p. 10